Connector identification assistance?

[jahjahsqc]

Heater box was out the car when i got it so i put it back in today, but came up with a couple extra connectors.

I've got these two. The small white 4 plug female comes from the engine harness. Can someone give me a direction?

Thanks guys

[Rotary Evolution]

1st should be the atmospheric pressure sensor plug, second looks like the alarm module connector.

[jahjahsqc]

Originally Posted by Rotary Evolution

1st should be the atmospheric pressure sensor plug, second looks like the alarm module connector.

hah definite on the second one, I had no idea i was missing that whole panel. now to find the pressure sensor...

thanks!

[Rotary Evolution]

the baro sensor is not the same thing as the pressure sensor. it has a filter instead of a vacuum line plug.

[jahjahsqc]

I went through all the extra parts I've got laying around and didn't see anything fitting that description. I'll have to do some searching to see if i can find a picture

[Rotary Evolution]

here's a few for referece:




no reference of the correct part numbers for various models/series in the FSM so i can only guess they are all N326 for the cars that actually used it.

for the most part i just disregard that it's in the car as they never seem to be problematic, i just recall that not all FCs used it for some reason.

it may be buried and still in the car somewhere in that mess they call the passenger kick panel, it is wedged in there kind of deep below the factory "knock box".

[JL1RX7]

Is the second one going into the logicon?

[jahjahsqc]

i think i found it.

This thing? I believe it has an FCD wired into it.

[jahjahsqc]

^^^ I was wrong. That goes into the engine bay.

I found the atmoshperic pressure sensor under the passenger seat. bolted it in place and good to go!

[Rotary Evolution]

yeah that last pic is of the pressure sensor for the engine, which has an engine blowing device attached to it to allow it to boost until the engine goes away.

[jahjahsqc]

Originally Posted by Rotary Evolution

yeah that last pic is of the pressure sensor for the engine, which has an engine blowing device attached to it to allow it to boost until the engine goes away.

have a hatred for the Fuel Cut Defender?

[Rotary Evolution]

if it is used properly it works, but keep in mind your ignition retard isn't going to work as it was intended. the point of the pressure sensor is to adjust timing advance based on engine load, if the box is telling the ECU the load is much less then the timing isn't going to retard as much as it should.

too much timing is arguably worse for a rotary than too little fuel is.

[jahjahsqc]

Originally Posted by Rotary Evolution

if it is used properly it works, but keep in mind your ignition retard isn't going to work as it was intended. the point of the pressure sensor is to adjust timing advance based on engine load, if the box is telling the ECU the load is much less then the timing isn't going to retard as much as it should.

too much timing is arguably worse for a rotary than too little fuel is.

Does the FCD change all timing or only above stock boost levels? (or at what point?)

[Rotary Evolution]

every FCD acts a little differently, how much it actually tricks the ECU depends on the FCD being used.